A Primer on OSHA’s New Walking-Working Surfaces Rule August 08, 2017 In November of 2016, the Occupational Safety and Health Administration (OSHA) issued a final rule updating its General Industry Walking-Working Surfaces requirements, located in 29 CFR 1910 Subpart D. The new rule also includes a new section in the General Industry Personal Protective Equipment standards, 29 CFR 1910 Subpart I, which establishes requirements for using […] Read More
Photovoltaic and Rooftop Safety August 08, 2017 With the solar industry rapidly expanding, novices are entering the industry, solar projects are becoming costcompetitive, and installation schedules are hurried. The concept of safety is sometimes overlooked. Health and safety hazards do exist—especially during installation. Safety is never optional, and it is the law. When safety standards are enforced, it benefits the workers, the […] Read More
Project Profile: Accessing the Arch August 08, 2017 The 630-foot-tall stainless steel Gateway Arch in St. Louis, Missouri, was designed in 1947 by architect Eero Saarinen to commemorate the city’s role in westward expansion. Since its official dedication in 1968, this National Historic Landmark has captivated over one-hundred million visitors. As the tallest man-made monument in America and the largest catenary structure ever […] Read More
Specifying Single Ply – Testing for Roof Performance July 08, 2017 INTRODUCTION In common with most construction industry practice, roofing specifiers rely on material specifications developed and published by the American Society for Testing and Materials (ASTM). Material standards such as ASTM D68781 for thermoplastic polyolefin (TPO), ASTM D44342 for polyvinyl chloride (PVC), and ASTM D67543 for ketone ethylene ester (KEE)-based sheet roofing include specifications for […] Read More
Electronic Leak Detection: Sound Science, Not a Magic Wand July 08, 2017 Due to its many advantages over flood testing, membrane integrity testing with electronic leak detection (ELD) has rapidly become the first choice for owners, manufacturers, specifiers, consultants, and contractors around the world. ELD on roofing and waterproofing membranes is proving to be faster, safer, more accurate, and often less expensive than flood testing. However, as […] Read More
Retrofitting Masonry Buildings in Cold Climates: When and What to Test July 08, 2017 A p r i l 2 0 1 7 I n t e r f a c e • 1 7 Air barriers, vapor retarders, and water-resistive barriers are critical components in the building envelope. However, there seems to be some confusion within the industry regarding the terminology and what materials function in which manner. […] Read More
